ML072260002

Closure of Confirmatory Action Letter NRR-07-013

ML072260002
Person / Time
Site:	Callaway
Issue date:	08/28/2007
From:	Catherine Haney NRC/NRR/ADRO/DORL/LPLIV
To:	Naslund C Union Electric Co
Donohew J N, NRR/DLPM,415-1307
References
TAC MD4138, NRR-07-013
Download: ML072260002 (4)

Text

August 28, 2007 Mr. Charles D. Naslund Senior Vice President and Chief Nuclear Officer Union Electric Company Post Office Box 620 Fulton, MO 65251

SUBJECT:

CALLAWAY PLANT, UNIT 1 - CLOSURE OF CONFIRMATORY ACTION LETTER NRR-07-013 (TAC NO. MD4138)

Dear Mr. Naslund:

By letter dated March 29, 2007, the U.S. Nuclear Regulatory Commission (NRC) issued Confirmatory Action Letter (CAL) No. NRR-07-013 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070680123) regarding dissimilar metal welds in the pressurizer nozzle and piping at Callaway Plant, Unit No. 1 (Callaway). The CAL confirmed actions that would be taken at Callaway in the spring 2007 refueling outage regarding pressurizer DM butt welds containing Alloy 82/182 material. In your letters dated January 31 and February 28, 2007 (ULNRC-05360 and ULNRC-05373, ADAMS Accession Nos. ML070380277 and ML070670457, respectively), you described commitments that addressed: (1) completion schedules for inspection/mitigation of the welds; (2) reactor coolant system (RCS) leak monitoring frequency, action levels, and actions; and (3) reporting requirements.

This letter acknowledges receipt of your letters dated May 4 and July 9, 2007 (ULNRC-05413 and ULNRC-05424, ADAMS Accession Nos. ML071300382 and ML071980376, respectively),

informing the NRC of the actions taken in response to the CAL. In your letters, you stated that during the last refueling outage at Callaway Plant (i.e., spring 2007), full structural weld overlays were installed for the pressurizer safety, relief, spray, and surge line nozzle welds, and that appropriate inspections were performed in accordance with the qualification requirements of the industry's Performance Demonstration Initiative on the pressurizer weld overlays following their installation during the outage.

Based on our review of your letters dated May 4 and July 9, 2007, the NRC has found that the commitments listed in the CAL and the supporting commitment letters dated January 31 and February 28, 2007, have been met. Therefore, no further response is required from you regarding the CAL for Callaway, and we consider the CAL closed. As such, it is no longer necessary for you to implement the enhanced inspection and RCS leakage monitoring requirements that were listed in the CAL. The actions taken in response to the CAL may be examined during a future NRC inspection at Callaway.

This completes NRC staff action for this CAL and closes the subject TAC No. MD4138. If you have any questions concerning this letter, contact Jack Donohew, Project Manager for Callaway at 301-415-1307, or via e-mail at jnd@nrc.gov.

C. Naslund Current NRC guidance regarding CALs is contained in the NRC Enforcement Policy and the NRC Enforcement Manual, which are available at the NRC web site at http://www.nrc.gov/about-nrc/regulatory/enforcement.html (click on Enforcement Policy or Enforcement Guidance) or by contacting the Government Printing Office (GPO) toll-free at 1-888-293-6498. The GPO is open from 7:00 a.m. to 9:00 p.m. EST, Monday through Friday (except Federal holidays).

In accordance with Section 2.390 of Title 10 of the Code of Federal Regulations of the NRC's "Rules of Practice," a copy of this letter will be made available electronically for public inspection in the NRC Public Document Room or from the NRCs document system (ADAMS),

accessible from the NRC Web site at http://www.nrc.gov/reading-rm.html.

Sincerely,

/RA/

Catherine Haney, Director Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-483 cc: See next page

ML072260002 OFFICE LPL4/PM LPL4/LA DCI/CPNB LPL4/BC DCI/D NAME JDonohew JBurkhardt TLupold THiltz Mevans, WHB for DATE 8/16/07 8/15/07 8/21/07 8/23/07 8/21/07 OFFICE DRP/D RIV DORL/D NAME DChamberlain, CHaney WJones for DATE 8/24/07 8/28/07 Callaway Plant, Unit 1 cc:

John ONeill, Esq. Technical Services Branch Chief Pillsbury Winthrop Shaw Pittman LLP FEMA Region VII 2300 N. Street, N.W. 2323 Grand Boulevard, Suite 900 Washington, D.C. 20037 Kansas City, MO 64108-2670 Mr. Keith A. Mills, Supervising Engineer Mr. Dan I. Bolef, President Regional Regulatory Affairs/Safety Analysis Kay Drey, Representative AmerenUE Board of Directors Coalition for the P.O. Box 620 Environment Fulton, MO 65251 6267 Delmar Boulevard University City, MO 63130 U.S. Nuclear Regulatory Commission Resident Inspector Office Mr. Lee Fritz, Presiding Commissioner 8201 NRC Road Callaway County Courthouse Steedman, MO 65077-1302 10 East Fifth Street Fulton, MO 65251 Mr. Les H. Kanuckel Manager, Quality Assurance Mr. David E. Shafer AmerenUE Superintendent, Licensing P.O. Box 620 Regulatory Affairs Fulton, MO 65251 AmerenUE P.O. Box 620 Missouri Public Service Commission Fulton, MO 65251 Governor Office Building 200 Madison Street Manager, Regulatory Affairs P.O. Box 360 AmerenUE Jefferson City, MO 65102-0360 P.O. Box 620 Fulton, MO 65251 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Mr. Keith G. Henke, Planner 611 Ryan Plaza Drive, Suite 400 Division of Community and Public Health Arlington, TX 76011-4005 Office of Emergency Coordination 930 Wildwood P.O. Box 570 Mr. H. Floyd Gilzow Jefferson City, MO 65102 Deputy Director for Policy Department of Natural Resources Director, Missouri State Emergency P.O. Box 176 Management Agency Jefferson City, MO 65102-0176 P.O. Box 116 Jefferson City, MO 65102-0116 Mr. Rick A. Muench President and Chief Executive Officer Mr. Scott Clardy, Director Wolf Creek Nuclear Operating Corporation Section for Environmental Public Health P.O. Box 411 P.O. Box 570 Burlington, KA 66839 Jefferson City, MO 65102-0570 Certrec Corporation 4200 South Hulen, Suite 422 Fort Worth, TX 76109 June 2007